throw exception if present does not exists

src/Prime/EventDispatcher/EventListener/PresetListener.php

@@ -8,6 +8,7 @@
 namespace Flasher\Prime\EventDispatcher\EventListener;
 
 use Flasher\Prime\EventDispatcher\Event\PersistEvent;
+use Flasher\Prime\Exception\PresetNotFoundException;
 use Flasher\Prime\Notification\Envelope;
 use Flasher\Prime\Stamp\PresetStamp;
 
@@ -21,7 +22,7 @@ use Flasher\Prime\Stamp\PresetStamp;
  *    }
  * }
  */
-class PresetListener implements EventSubscriberInterface
+final class PresetListener implements EventSubscriberInterface
 {
     /**
      * @phpstan-var PresetType[]
@@ -65,7 +66,7 @@ class PresetListener implements EventSubscriberInterface
         }
 
         if (!isset($this->presets[$preset->getPreset()])) {
-            return;
+            throw new PresetNotFoundException($preset->getPreset(), array_keys($this->presets));
         }
 
         $preset = $this->presets[$preset->getPreset()];

src/Prime/Exception/PresetNotFoundException.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the PHPFlasher package.
+ * (c) Younes KHOUBZA <younes.khoubza@gmail.com>
+ */
+
+namespace Flasher\Prime\Exception;
+
+final class PresetNotFoundException extends \Exception
+{
+    /**
+     * @param string   $preset
+     * @param string[] $availablePresets
+     */
+    public function __construct($preset, array $availablePresets = array())
+    {
+        $message = sprintf('Preset "%s" not found, did you forget to register it?', $preset);
+        if (array() !== $availablePresets) {
+            $message .= sprintf(' Available presets: %s', implode(', ', $availablePresets));
+        }
+
+        parent::__construct($message);
+    }
+}